Saw setting device



Nov. 28, 1933. A ANDERSON 1,937,182

SAW SETTING DEVICE Filed Anvil 8, 1932 2 SheetsSheet l INVENTOR.

NOV. 28, 1933. ANDERSON 1,937,182

SAW SETTING DEVICE -q Filed April 8, 1932 2 Sheets-Sheet 2 INVENTOR.

Patented Nov. 28, 1 933 ma -Er 1,937,182 SAW SETTING DEVICE Karl A. Anderson, Cleveland, Ohio Application April 8,1932. Serial No. 604,031

'4 Claims.

This invention has to do with the art of saw setting devices, and has for an object to s'et the teeth of a saw at the proper or desired angle. The means as described has in view the setting of the teeth of a carpenters handsaw, but the same means may be used with appropriate variation of design to set the teeth in any type of saw.

The purpose of this invention then is to pro vide a complete device of the type mentioned which is simple in construction, inexpensive to produce, strong, durable, readily adjustable, of convenient size, easily operated, and thoroughly reliable and efficient in use.

With the foregoing and other purposes in view, the invention consists in the novel features of construction, combination and arrangementof parts as will be hereinafter more fully described, illustrated in the accompanying drawings and defined in the appended claims.

In the drawings, wherein like characters of reference define corresponding parts in the different views Figure 1 is a top view of asaw setting device constructed in accordance with this invention.

Figure 2 is aside view of the device.

Figure '3 is a cross section on the line A-A of Figure 2.

Figure 4 is a detail section on the line 3-3 of Figure 2.

Figure 5 is an end view of the device.

Figure 6 is a top view of the toothed rotator, part 2 shown in Figures 1, 2, 4 and 5.

Figure '7 is a side view of the toothed rotator and part of shaft 9 upon which it'slides and rotates freely.

Figure 8 is a side and end view of V the guide 16 shown in Figures 2 and 5.

Referring now to the drawings in detail it will be observed that the present device comprises a body or frame 1, an assembly consisting of shaft 9, nut 10, keys 11-11, collar 14 through which pass shaft 9 and keys 11-11, adjusting wing-nut 12, washer 13, spring '7, toothed rotator 2, guides 16-16, and adjustable anvil 3. Shaft 9 is pivotally attached at its foot or collar end to frame 1 by means of screws 8-8. Collar 14 is free to move the length of slot 18 in frame 1, carrying with it the assembly on shaft 9, and may be clamped tightly at any desired setting on slot 18 by means of wing-nut 12, and further braced and adjusted .by means of thumbscrew 15; The position of toothed rotator 2, which slides and rotates freely on shaft 9, is adjusted by means of nut 10 which drives keys 11-11 through keyways in shaft 9,

' said keys bearing on top face of toothed rotator 2,

forcing said toothedrotator down to desired po--' sition on shaft 9, which action is resisted by spring '7. Adjustable anvil 3 is piv'otally secured to frame 1 by means of bolts 5-5 and wing-nuts 4-4. It may be adjusted vertically by means of 0. slots 19-19 in frame 1. The angle of table face 20 may be further adjusted by means of thumbscrew 6. Guides l6-16'are secured in a slot in frame 1 by means of rivets 17-17 and directly above and parallel to saw channel 21.

General operation of device In the use of the device the saw which is to be set is securely clamped, as in a vise, tooth edge upward. The present device is then applied to the saw by placing saw channel 21 over the saw until guides 16-16 rest upon the saw and in the V shaped groove formed by the inside edges of the obliquely projecting teeth of the saw. Adjustable anvil 3 is then adjusted by means of wingnuts 1-4 securing bolts 5-5, sliding in slots 19-19, and by means of thumbscrew 6, until anvil face 20 is in the requisite position in relation to the saw to give the desired pitch to the saw teeth when said teeth are forced against the anvil face 20 by the teeth of toothed rotator 2.

Toothed rotator 2, which somewhat resembles a conical or beveled gear wheel and which is so designed that at some point in its toothed circumference it will engage every other tooth of the saw 5 whether'the saw be one having a few large teeth to the inch or one having more smaller teeth to the inch, is then brought into proximity with the saw teeth, and by a manipulation of nut 10 and wingnut 12is adjusted to its proper positionin reference to the teeth of the saw, so that when the present device is propelled along the length of the saw it will exactly engage every other teeth of the saw forcing tooth onto table face 20 of adjustable anvil 3. Final and locking adjustment is effected with thumbscrew 15, bearing against collar 14.

The device is then propelled by manual means or otherwise along the length of the saw, back and forth, meanwhile downward pressure being exerted setting one-half of the saw teeth. The

device is then removed from the saw, turned through 180 and placed back upon the saw and the operation repeated, setting the balance of the saw teeth; the whole being a most compact, useful, efficient, novel and reliable saw setting device.

From the foregoing description considered in connection with the accompanying drawings, it is believed that the construction and the advantages of the present device will be clearly understood.

It is desired to point out, however, that the struc- 10 ture shown may be modified in various respects within the spirit and scope of the invention as defined in the appended claims.

I claim:-

1. A saw setting device comprising a frame provided with a slot, an anvil adjustably mounted in said frame, a shaft pivotally and adjustably mounted on said frame and guided by said slot, a conical toothed rotator rotatably mounted on said shaft and adjustable longitudinally thereof, said anvil and rotator co-operating to set the teeth of a saw passing therebetween. V

2. A saw setting device comprising a frame provided with a saw channel and a slot, an anvil ads justably mounted in said frame, a shaftpivot'ally and adjustably mounted on said frame and guided by said slot, said shaft having keyways, a conical toothed rotator rotatably and slidably mounted on said shaft, a spring mounted on said shaft and abutting one end of said rotator to urge the same longitudinally of said shaft, keys in said keyways abutting the opposite end of said rotator, and means'adjustable on said. shaft and engaging said keys to urge said rotator against said spring in order to provide adjustment of said rotator longitudinally of said shaft.

3. An attachment for saw setting devices the same being a guide extending into the saw channel, to engage in the acute angle formed by the inside edge of the saw teeth, to prevent injury to the saw teeth and to facilitate operability.

4:. A saw setting device comprising a frame provided with a slot and a saw channel, an anvil adjustably mounted in said frame, a shaft pivotally and adjustably mounted on said frame and guided by said slot, a conical toothed rotator mounted on saidshaft and adjustable longitudinally thereof, a guide secured in said frame extending into the saw channel to engage in the acute angle formed by the inside edge of the saw teeth, to prevent injury to said teeth, said anvil, rotator and guide co-operating to set the teeth of a saw passing therebetween, thereon and through the saw channel. p

KARL A. ANDERSON. 

